[1] HARVARD UNIV, SCH MED, BOSTON, MA 02115 USA
[2] BRIGHAM & WOMENS HOSP, DIV GASTROENTEROL, BOSTON, MA 02115 USA
[3] JOHNS HOPKINS MED INST, BALTIMORE, MD 21205 USA
[4] JOHNS HOPKINS UNIV, SCH MED, DEPT MED, DIV GASTROENTEROL, BALTIMORE, MD 21205 USA
[5] CEDARS SINAI MED CTR, DEPT MED, DIV BIOSTAT, LOS ANGELES, CA 90048 USA
[6] UNIV CALIF LOS ANGELES, MED CTR, LOS ANGELES, CA USA
[7] UNIV PITTSBURGH, PITTSBURGH, PA 15260 USA
[8] CLEVELAND CLIN EDUC FDN, DEPT GEN SURG, CLEVELAND, OH 44106 USA
[9] MED COLL WISCONSIN, MILWAUKEE, WI 53226 USA
[10] FROEDBERT MEM LUTHERAN HOSP, DIV GASTROENTEROL, MILWAUKEE, WI USA
[11] MAYO CLIN & MAYO FDN, MAYO MED SCH, DEPT SURG, ROCHESTER, MN 55905 USA
[12] SANFORD FAMILY HLTH CARE PA, SANFORD, ME USA
[13] UNIV TEXAS, MED BRANCH, DEPT INTERNAL MED, GALVESTON, TX 77550 USA
[14] UNIV NEBRASKA, MED CTR, DEPT SURG, OMAHA, NE 68105 USA
[15] UNIV NEBRASKA, MED CTR, LIVER TRANSPLANT PROGRAM, OMAHA, NE 68105 USA
[16] AMER LIVER FDN, CEDAR GROVE, NJ USA
[17] DUKE UNIV, MED CTR, DIV GASTROENTEROL, OUTPATIENT SERV, DURHAM, NC 27710 USA